<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Login</title>
</head>
<body>
    <form method="post" action="/login">
        <span>用户名：</span>
        <input name="username"/><br/>
        <span>密码：</span>
        <input name="password"/>
        <input type="submit" value="提交" />
    </form>
</body>
</html>